libucontext/arch/loongarch64/startcontext.S

34 lines
819 B
ArmAsm

/*
* Copyright (c) 2021 Peng Fan <fanpeng@loongson.cn>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* This software is provided 'as is' and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising
* from the use of this software.
*/
#define LOCALSZ (4)
#include "defs.h"
FUNC(libucontext_trampoline)
/* call setcontext */
move $a0, $s0
/* we receive our initial ucontext in $s0, so if $s0 is nil, bail */
beqz $s0, no_linked_context
la.got $t8, libucontext_setcontext
jr $t8
no_linked_context:
move $a0, $zero
la.global $t8, exit
jr $t8
END(libucontext_trampoline)